Ultrasound-Guided Lumbar Plexus Injection: A Cadaveric Validation
Status PubMed-not-MEDLINE Jazyk angličtina Země Švýcarsko Médium electronic
Typ dokumentu časopisecké články
Grantová podpora
MOST 106-2314-B-002-180-MY3
Ministry of Science and Technology, Taiwan
MOST 109-2314-B-002-114-MY3
Ministry of Science and Technology, Taiwan
NSTC 112-2314-B-002-134
National Science and Technology, Taiwan
NSTC 113-2314-B-002 -208 -MY2
National Science and Technology, Taiwan
NSTC 113-2314-B-002 -209 -MY2
National Science and Technology, Taiwan
PubMed
41374397
PubMed Central
PMC12691128
DOI
10.3390/diagnostics15233017
PII: diagnostics15233017
Knihovny.cz E-zdroje
- Klíčová slova
- injection, lumbar plexus, pain, sonography, spinal nerve,
- Publikační typ
- časopisecké články MeSH
Ultrasound (US) has gained increasing acceptance for evaluating the axial spine, including the lumbar region. While its accuracy for superficial structures such as facet joints and medial branches has been validated, evidence supporting its use for deeper targets, such as the lumbar plexus, remains limited. This cadaveric study aimed to assess the feasibility of US-guided lumbar plexus injection. A fresh-frozen female cadaver with a body mass index of 23 kg/m2, prepared using the "Fix-for-Life" technique, was utilized. Using a 2-5 MHz curved linear transducer (HS30; Samsung Medison, Seoul, Republic of Korea), injections were performed with an in-plane approach under continuous needle visualization. A 20-gauge, 7 cm spinal needle was used to deliver 5 mL of green dye targeting the L3 and L4 nerve roots. Dissection confirmed that L3 injection achieved dye spread to the extraforaminal region, whereas L4 injection demonstrated anterior dye distribution adjacent to the intervertebral foramen. The main limitations included the use of a single specimen and acoustic shadowing from articular processes, which impeded visualization of neural structures. This study demonstrates the feasibility of US-guided lumbar plexus injection and supports its potential application in clinical pain management, although further validation with larger sample sizes is warranted.
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